{"dataType":"CVE_RECORD","dataVersion":"5.1","cveMetadata":{"cveId":"CVE-2021-47457","assignerOrgId":"416baaa9-dc9f-4396-8d5f-8c081fb06d67","state":"PUBLISHED","assignerShortName":"Linux","dateReserved":"2024-05-21T14:58:30.833Z","datePublished":"2024-05-22T06:19:46.021Z","dateUpdated":"2025-05-04T07:11:20.213Z"},"containers":{"cna":{"providerMetadata":{"orgId":"416baaa9-dc9f-4396-8d5f-8c081fb06d67","shortName":"Linux","dateUpdated":"2025-05-04T07:11:20.213Z"},"descriptions":[{"lang":"en","value":"In the Linux kernel, the following vulnerability has been resolved:\n\ncan: isotp: isotp_sendmsg(): add result check for wait_event_interruptible()\n\nUsing wait_event_interruptible() to wait for complete transmission,\nbut do not check the result of wait_event_interruptible() which can be\ninterrupted. It will result in TX buffer has multiple accessors and\nthe later process interferes with the previous process.\n\nFollowing is one of the problems reported by syzbot.\n\n=============================================================\nWARNING: CPU: 0 PID: 0 at net/can/isotp.c:840 isotp_tx_timer_handler+0x2e0/0x4c0\nCPU: 0 PID: 0 Comm: swapper/0 Not tainted 5.13.0-rc7+ #68\nHardware name: QEMU Standard PC (i440FX + PIIX, 1996), BIOS 1.13.0-1ubuntu1 04/01/2014\nRIP: 0010:isotp_tx_timer_handler+0x2e0/0x4c0\nCall Trace:\n <IRQ>\n ? isotp_setsockopt+0x390/0x390\n __hrtimer_run_queues+0xb8/0x610\n hrtimer_run_softirq+0x91/0xd0\n ? rcu_read_lock_sched_held+0x4d/0x80\n __do_softirq+0xe8/0x553\n irq_exit_rcu+0xf8/0x100\n sysvec_apic_timer_interrupt+0x9e/0xc0\n </IRQ>\n asm_sysvec_apic_timer_interrupt+0x12/0x20\n\nAdd result check for wait_event_interruptible() in isotp_sendmsg()\nto avoid multiple accessers for tx buffer."}],"affected":[{"product":"Linux","vendor":"Linux","defaultStatus":"unaffected","repo":"https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git","programFiles":["net/can/isotp.c"],"versions":[{"version":"e057dd3fc20ffb3d7f150af46542a51b59b90127","lessThan":"053bc12df0d6097c1126d0e14fa778a0a8faeb64","status":"affected","versionType":"git"},{"version":"e057dd3fc20ffb3d7f150af46542a51b59b90127","lessThan":"a76abedd2be3926d6deba236a935c7f98abf9110","status":"affected","versionType":"git"},{"version":"e057dd3fc20ffb3d7f150af46542a51b59b90127","lessThan":"9acf636215a6ce9362fe618e7da4913b8bfe84c8","status":"affected","versionType":"git"}]},{"product":"Linux","vendor":"Linux","defaultStatus":"affected","repo":"https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git","programFiles":["net/can/isotp.c"],"versions":[{"version":"5.10","status":"affected"},{"version":"0","lessThan":"5.10","status":"unaffected","versionType":"semver"},{"version":"5.10.76","lessThanOrEqual":"5.10.*","status":"unaffected","versionType":"semver"},{"version":"5.14.15","lessThanOrEqual":"5.14.*","status":"unaffected","versionType":"semver"},{"version":"5.15","lessThanOrEqual":"*","status":"unaffected","versionType":"original_commit_for_fix"}]}],"cpeApplicability":[{"nodes":[{"operator":"OR","negate":false,"cpeMatch":[{"vulnerable":true,"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionStartIncluding":"5.10","versionEndExcluding":"5.10.76"},{"vulnerable":true,"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionStartIncluding":"5.10","versionEndExcluding":"5.14.15"},{"vulnerable":true,"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionStartIncluding":"5.10","versionEndExcluding":"5.15"}]}]}],"references":[{"url":"https://git.kernel.org/stable/c/053bc12df0d6097c1126d0e14fa778a0a8faeb64"},{"url":"https://git.kernel.org/stable/c/a76abedd2be3926d6deba236a935c7f98abf9110"},{"url":"https://git.kernel.org/stable/c/9acf636215a6ce9362fe618e7da4913b8bfe84c8"}],"title":"can: isotp: isotp_sendmsg(): add result check for wait_event_interruptible()","x_generator":{"engine":"bippy-1.2.0"}},"adp":[{"title":"CISA ADP Vulnrichment","metrics":[{"other":{"type":"ssvc","content":{"id":"CVE-2021-47457","role":"CISA Coordinator","options":[{"Exploitation":"none"},{"Automatable":"no"},{"Technical Impact":"partial"}],"version":"2.0.3","timestamp":"2024-05-22T15:53:56.304705Z"}}}],"providerMetadata":{"orgId":"134c704f-9b21-4f2e-91b3-4a467353bcc0","shortName":"CISA-ADP","dateUpdated":"2024-06-04T17:15:15.881Z"}},{"providerMetadata":{"orgId":"af854a3a-2127-422b-91ae-364da2661108","shortName":"CVE","dateUpdated":"2024-08-04T05:39:59.247Z"},"title":"CVE Program Container","references":[{"url":"https://git.kernel.org/stable/c/053bc12df0d6097c1126d0e14fa778a0a8faeb64","tags":["x_transferred"]},{"url":"https://git.kernel.org/stable/c/a76abedd2be3926d6deba236a935c7f98abf9110","tags":["x_transferred"]},{"url":"https://git.kernel.org/stable/c/9acf636215a6ce9362fe618e7da4913b8bfe84c8","tags":["x_transferred"]}]}]}}